JPH02216136A - Picture reader - Google Patents

Abstract

PURPOSE:To eliminate the need to read retrieving information for display after it is retrieved once by providing a means storing read-out pictures and a memory storing retrieving information. CONSTITUTION:A frame picture on a micro fiche as a picture recorder is formed on the plane of a reading sensor S via a mirror group and a projecting lens, and a signal from the sensor S is stored in a picture memory 18 and a buffer memory 19 via a signal processing circuit 17. The stored picture is displayed on a display means such as a CRT 14. The memory 18 is composed of an optical disk, and can store each frame picture on the micro fiche, and the memory 19 preferably has storage capacity to store two or more frame pictures in 1st and 2nd areas, and can store index frames.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an image reading device such as a reader printer that photoelectrically reads an image in an image recording medium such as a microfiche with an image sensor, and particularly relates to an image reading device such as a reader printer that photoelectrically reads an image in an image recording medium such as a microfiche. It relates to searching and reading images based on index information in media.

[Prior Art] Conventionally, in analog reader printers that use microfiche, when microfiche is introduced into the reader printer body, the X-Y
The carriage starts moving, and an index frame as index information (hereinafter referred to as index information) of the microfiche is projected onto the optical screen. Then, the operator (hereinafter referred to as "operator") searches for the desired frame number while looking at this index information, and by inputting that frame number, the X-Y carriage moves and the frame image is enlarged and projected on the optical screen. It is something that will be done.

After that, if you want to see another frame image and want to refer to the index frame, turn on the index switch provided in advance to
The carriage moves again and the index frame is projected onto the optical sphunone again.

However, the above-mentioned analog league printers require a large optical screen to enlarge the microfiche image frame to a size close to the original manuscript size and confirm the image information. This meant that the equipment would be larger.

Furthermore, in analog processing, it is difficult to freely process image information.

Therefore, in recent years, digital league printers have been provided that read microfiche frame images with an image sensor or the like, store the read images in a memory such as an optical disk, and display them on a display device such as a CRT.

Therefore, since the above-mentioned digital league printer displays the read image on a display device such as a CRT, there is no need for a large screen, and since the read image is stored as digital data, various image processing can be performed. It can be done freely.

[Problem to be Solved by the Invention] By the way, in the analog conventional example described above, when the index switch is turned on when referring to index information, the X-Y carriage operates to move the index frame to a predetermined projection position. However, when referring to the index information in the conventional digital system described above, after the X-Y carriage moves to move the index frame to a predetermined reading position, Index information could not be seen without performing further read operations.

In general, index information is referenced at a very high rate when searching for microfiche, and the fact that the index contents can only be seen after the X-Y carriage has finished moving and the index knob image has finished reading is an important part of the search process. This significantly deteriorated the efficiency, and the advantage of being able to freely perform various processing on images could not be utilized much.

The present invention has been made to solve the problems of the prior art described above, and its purpose is to provide an image reading device that is capable of digital image processing and that can immediately refer to index information. It's about doing.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a reading means for searching for a desired image in an image recording medium and photoelectrically reading the image, and a reading means for photoelectrically reading the image. An image reading device comprising a storage means for storing an image and a display means for displaying the image stored in the storage means, which is provided with a memory for storing predetermined index information in the image recording medium. .

Preferably, the memory has a capacity capable of storing images for two or more screens.

Further, it is preferable that the index information is stored in the memory immediately after loading the image recording medium.

Additionally, the information stored in memory may be changeable.

[Function] In the present invention having the above configuration, by providing the storage means for storing the image read by the reading means and the memory for storing the index information, it is possible to easily read the index information. , there is no need to perform a read operation each time index information is displayed.

[Embodiment] A first embodiment of the present invention is shown in FIGS. 1 to 4, and its structure will be explained based on FIGS. 1 and 2.

1 is microfiche as an image recording medium,
A large number of images on a sheet of film (hereinafter referred to as image frames) AI NAl4. This is a type of microfilm that records B1-G14 in reduced size. Reference numeral 2 designates a fluorescent lamp as a longitudinal light source disposed corresponding to the longitudinal direction of the microfish 1, 3 a field lens, and a glass pressure plate 4 that sandwiches the fluorescent lamp 2 and the microfish l.
, 5, and has a cylindrical shape that has lens characteristics only in the direction orthogonal to the longitudinal direction of the fluorescent lamp 2. The fluorescent lamp 2 and field lens 3 uniformly illuminate every frame in the frame rows of the microfiche 1 (in this case, E1 to E14 in the figure). L is a projection lens, and the frame image of the microfiche L is reflected by the first mirror M, and by this projection lens L, the frame image of the microfiche L is reflected by the second mirror M. Third mirror M2. An image is formed on the surface of a reading sensor S as a reading means via M3.

Here, the first mirror M1 and the projection lens L are fixed on the lens stand 6, and the second mirror M1 and the projection lens L are fixed on the lens stand 6. Third mirror M
2 and Ms are fixed to the mirror stand 7, and the reading sensor S is fixed independently of the lens stand 6 and the mirror stand 7. One end of each of the lens stand 6 and the mirror stand 7 is slidably supported by a common shaft 8, and bearings 6a and 7a are disposed at the portions in contact with the shaft 8, respectively. Furthermore, the other ends of the lens stand 6 and the mirror stand 7 are slidably supported by a common guide 9 for rotational direction positioning and movement guidance around the axis. Sliders 6b and 7b are respectively provided to improve sliding characteristics. 10 is a drive wire, which connects the lens stand 6 via a wire locking tool 10a.
A wire hook attached to the member 6c is fixed to one end of the member 6c, and a tension spring 11 is attached to the other end of the member 6C, and the wire hook is connected to the mirror stand via a wire hook tob. A wire hook attached to 7 is connected to member 7c, and a reference position (hereinafter referred to as home position) of lens stand 6 when moving is determined by home position sensor P. As shown in FIG. 2, reference numeral 12 denotes a reading section having an insertion slot for the microfiche 1 on the front panel, and 13 an image memory 18 and a buffer memory 19 as storage means for storing image data read by the reading section 1. and a host section 14 equipped with an MPU for performing various controls.
1 is a display such as a CRT or a liquid crystal display board as a display means, and 15 is a keyboard for inputting necessary data such as the frame number to be searched.

Here, the image memory 18 consists of an optical disk or the like,
The image of each image frame of microfiche l can be stored.

Further, the buffer memory 19 has a first area 19a and a second area 19a.
It has a storage capacity for two images with area 19b, and
It is possible to memorize index frames.

Next, the control configuration of this embodiment will be explained based on the block diagram of FIG. 3.

I6 is an MPU consisting of a microcomputer and controls the entire device. 17 is a signal processing circuit with a built-in A/D converter that digitizes the analog signal from the reading sensor S; 20 is an MPU 1 in addition to video memories such as the image memory 18 and the buffer memory 19;
6 is memory such as RAM and ROM.

Next, an example of the operation of this embodiment will be explained based on the flowchart of FIG.

First, insert the microfiche into the insertion slot of the reading section 12.
(STEP 1), the host unit 13 initializes the internal variable j using the contents of the memory 20 that stores frequently used microfiche values (generally index frame values) as default values. (STEP 2), clear the internal variables, and initialize variable k with variable j (STEP 3). The internal variables here are flags, and the variables contain the image frame Al to be read. -Means the frame number of G14.

(In this case, the default value is =614), and the lens stand 6 at this time is located at the home position by the home position sensor P. The driving amount corresponding to the value divided by the number of rows (in this case, 14) is applied to the feeding/feeding roller pair (not shown) of the microfiche 1, and the driving amount corresponding to the remainder value is applied to the lens stand 6. By applying this to a scanning motor (not shown), the movement to a predetermined image frame (in this case, index frame G14) is completed (STEP 4), and this frame image is read (STEP 5). The frame image is stored in the image memory 18 (STEP 6). Then, the value of variable I, which is the index flag, is checked (STE
P7). The variable I here is Ol, that is, the index frame G14 has been read, so the frame image should be stored in the first area 19a A of the buffer memory 19 (STEP 8), and the variable ■ is set to 1 (STEP 9).
Then, the data in the first area 19a of the buffer memory 19 is displayed on the display 14 for index display (STEPIO), and while referring to the index information displayed on the display 14, a desired frame number is searched, and the keyboard 15 is Enter the frame number from (ST
EPII). Next, check whether the character type input from the keyboard 15 is a frame number. 5TEP 1
2) In this case, it is the frame number, so the above 5TEP4.5. Then, the processing of 5TEP6 is performed. Then, in the process of 5TEP7 above, the value of the variable has changed to 1, so the frame image read in the process of 5TEP5 is stored in the second area 19b of the buffer memory 19 (STEP13), and this buffer The data stored in the second area 19b of the memory 19 is displayed on the display 14 (STEP 14).

If you know the frame number you want to search next,
By entering that frame number, you can
2.4.5.8.7.13. Then, the process of 5TEP14 is repeated, and a desired frame image is displayed on the display 14.

However, if you don't know the frame number you want to search for and want to refer to the index information, use the host section! When checking whether the Index key has been pressed, "When the Index key is pressed, the process in step 5 TEP 12 above is performed."
15) Detecting the pressing of “-Index”, the above 5TE
By executing the process P10, the index information is immediately displayed.

Here, the default value (index frame G14 in this case) is specified for the image information displayed in the above 5TEPIO, but if that value is not the desired value, the "Index" If you set the shift amount S before pressing the key, the above 5TEP12.1
After completing the process in step 5, clear the internal variables and proceed to (STEP
16), the value of the variable is changed according to the shift amount S (STEP 17). And the above 5TEP4.5.6.
7.8°9 and 5TEPIO are executed, and a desired frame image is displayed on the display 14.

Furthermore, it is also possible to change the above default values as necessary.

Here, the resolution of the display 14 is generally lower than that of the reading means because it has only a visually permissible lower limit resolution due to memory capacity and the like. Therefore, the content displayed on the display 14 can be treated as information that has been thinned out appropriately within a range that can be discerned with the naked eye. That is, by thinning out images displayed on the display 14, the memory capacity for storing frame images can be reduced compared to the above embodiment, and the image reading speed can be increased.

Note that, since index information is generally all character or numerical information, the read image may be character-recognized and converted into a code, and then developed into an image and stored in the buffer memory 19.

[Effect of the invention] Once the index information is read, there is no need to read it every time the index information is displayed, so even if you want to see the index information during a search, you can immediately read it by simply loading the memory. index information can be displayed.

Therefore, it is possible to eliminate the wasted time associated with frame movement and reading operations that were necessary in conventional digital image reading devices, and greatly improve work efficiency when searching for frames in image recording media such as microfiche. .

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the main parts of an embodiment of the present invention, FIG. 2 is a perspective view showing the overall configuration of this example, FIG. 3 is a block diagram showing the control configuration of this embodiment, and FIG. 4 is a flowchart showing the control operation of this embodiment. Explanation of symbols 1...Microfiche (image recording medium) 2...
Fluorescent lamp (light source) 3...Field lens 4.5...
・Glass pressure plate 6...Lens stand 7...Mirror stand
8...Axis 9...Guide lO...Drive wire...
Tension spring 2...Reading unit 3...Host unit (storage means) 4...Display (display means) 5...Keyboard 16...MPU7...Signal processing circuit 1B...Image memory 9 ...Buffer memory 20...Memory Figure 3

Claims (4)

[Claims] (1) A reading device that searches for a desired image in an image recording medium and reads this image photoelectrically, a storage device that stores the read image, and a display that displays the image stored in the storage device. An image reading device comprising: a memory for storing predetermined index information in the image recording medium. (2) The image reading device according to claim 1, wherein the memory has a capacity capable of storing images for two or more screens. (3) The image reading device according to claim 2, wherein the index information is stored in the memory immediately after loading the image recording medium. (4) The image reading device according to claim 3, wherein the information stored in the memory is changeable.